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Note 3 - Inventories
6 Months Ended
Jun. 30, 2014
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

3.             INVENTORIES


Inventories, net are comprised of the following (in thousands): 


      June 30,       December 31,  
      2014       2013  

Finished goods

  $ 292     $ 539  

Work-in-progress

    254       310  

Raw material

    1,041       1,967  
    $ 1,587     $ 2,816